Adjustable seat



C. H., HAGOPIAN ADJUSTABLE SEAT Filed DeC. '7I 1923 June 2, 1925.

' lNvENToR v ATTORNEYS Patented June 2, 1925.

CHARLES H. HAGOPIAN, OF SPRINGFIELD, MASSACHUSTTS.

ADJUSTABLE SEAT.

Application led December 7,1923. Serial No. 679,230;

' 10 all whom t may concern.'

Be it known that I, CHARLES H. HAGOPIAN, a citizen of the Republic ofArmenia, residing at Springfield, in the county of Hampden and State ofMassachusetts, have invented new and useful Improvements in AdjustableSeats, of which the following is a specification.

The' invention relates to adjustable seats and particularly to the typehaving a support and a seat movable therein that is adapted to be heldin various positions of a dj ustment.

The object of the invention is the provision of a device that is easilymoved by hand to any desired adjusted position and in which it is heldby means associated with the support and seat.

Another object of the invention is the provision of holding means thatare released g from holding engagement as the seat is moved to its mostelevated position and that allows the seat to be lowered without themanual disengagement of the holding mechs anism. Other objects andadvantages will be obvious from the following description andaccompanying drawings in which:

Fig. 1 is a side elevational view of an adjustable seat embodying myinvention,

Fig. 2 is a sectional elevational view taken on line 2--2 of Fig. 1,

Fig. 3 is an enlarged sectional view taken on line 3-3 of Fig. 2, and

Fig. 4 is an enlarged elevational view of a portion of one of the guidemembers showing the Vpawl pivoted thereto, and Fig. 5 is a perspectiveview of the holding plate.

Referring to the drawings in detail the invention will now be described.

Upright posts 1 are provided that are disposed two at either end ofsupport. They are secured rigidly together by the side bars 2 and endbars 3 in such a manner that they form a rigid seat supporting member.The` said posts are shown as being rectangular in cross section but maybe made in any form desired or ornamented in any desired manner. Otherend cross bars 4 are secured to the posts 1 at the ends of the supportand are spaced from the members 3 as best shown in Fig. 3. The spacebetween the inner or adjacent faces of the saidmembers 3 and 4 serve asguideways 4 for the tongues 5 of the movable seat 6.

The said seat 6 preferably comprises a fiat bench-like member as shownhaving two downwardly extending guides or tongues 5 that are slidablycarried in the before mentioned guideways 4. The seat by the means ofthesaid tongues and guideways is held in a level plane during a'lowering orraising movement. Holding plates 7 are fixed to each of theposts 1 at a point adjacent the ends of the guideways 4. These plates v7 v comprise a substantially dat rear wall that is encircled by side andend walls or flanges 9 and 14. A central bar portion B is carried by theplate 7 thatis provided on its forward face with holding notches 8 whilethe ends of the bar portion is curved at 16 and 17 as best shown in Fig.5'. The side wall 9 of the plate is preferably shaped to form noseguides 10 adjacent the holding notches 8 while the wall at the rear ofthe bar is spaced from the rear side 7 of the bar portion B to form aguideway 15 therewith. 1

Pawls 11 pivoted at each end of the tongues- 5 by the-means of screws 12or'the like carry on their outer end a notch engaging pin or plug 13. Asthe seat is grasped by hand and raised to an elevated position, the noseportions 10 of the platesv guide the pins 13 into the various notches 8and in any one of which the pins may rest to support the seat in anelevated position.

In operation the seat 6is grasped by the hands for a raising movementand the pawl pin is guided bythe nose portion 17 into the variousnotches 8 whereby the seat may be supported by the pawl and notches invarious elevated positions. To lower the seat it is raised to the limitof its movement wherein the pawl pin 13 strikes the curved portion ofthe flange at 19 and which prevents a further raising movement. The seatmay then be lowered to its lowermost position during which movement thepawl and pin are guided into the channel 15 by the means of the guidingcurved end 16 of the plate. j f

It will be readily obvious that many changes may be made in the form ofthe invention without departing from the scope pavvl engaging notches inone side thereof` able in said guideways, whereby the seat may be movedvertically of the support, pawls pivoted at opposite sides of each ofsaid guides, plates carried by thesupport at either end of saidguidevvays'each having a central boss portion that is provided With anda flange extending around the boss to form a notch guide at the notchedside of the boss and a channel yat the rear sine 1o InA testimonywhereof I have allixed my 15 signature.k

CHARLES H. HAGOPIAN.

